CN114928863B - Uplink communication method under high-speed movement and related equipment - Google Patents

Uplink communication method under high-speed movement and related equipment Download PDF

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Publication number
CN114928863B
CN114928863B CN202210148638.4A CN202210148638A CN114928863B CN 114928863 B CN114928863 B CN 114928863B CN 202210148638 A CN202210148638 A CN 202210148638A CN 114928863 B CN114928863 B CN 114928863B
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China
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base station
user equipment
user
sharing
target base
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CN114928863A (en
Inventor
董辰
张语涵
许晓东
王碧舳
韩书君
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Beijing University of Posts and Telecommunications
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Beijing University of Posts and Telecommunications
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0009—Control or signalling for completing the hand-off for a plurality of users or terminals, e.g. group communication or moving wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides an uplink communication method and related equipment under high-speed movement, wherein the base station comprises a source base station and a target base station, and the communication method comprises the following steps: responding to the sharing information request of the target base station, and sharing a user information table corresponding to at least one user equipment in the source base station to the target base station; and demodulating the signal transmitted by the user equipment based on the user information table so as to establish uplink communication connection between the user equipment and the target base station. The method of the application can share the related information of the user equipment stored in the current base station to the next base station under the modulation of the user sequence, thereby avoiding the time-consuming problem of reestablishing the communication mechanism and ensuring the stable transmission of the data of the mobile terminal in the high-speed mobile scene.

Description

Uplink communication method under high-speed movement and related equipment
Technical Field
The present application relates to the field of communications technologies, and in particular, to an uplink communication method and related devices under high speed movement.
Background
In recent years, china's high-speed railways are rapidly developed, and at the same time, demands for users to communicate in high-speed scenes are increasing, for example, users to communicate on running high-speed trains. When the user equipment communicates in a high-speed moving state, various problems such as frequent switching, high switching failure rate, high radio link failure rate and the like can occur.
Based on this, a scheme capable of realizing efficient and stable communication with a user moving at a high speed, particularly an uplink communication scheme is demanded.
Disclosure of Invention
In view of the above, an object of the present application is to provide an uplink communication method and related device under high-speed movement, which solve the above problems.
In view of the above object, a first aspect of the present application provides an uplink communication method under high-speed movement, the base station including a source base station and a target base station, the communication method including:
Responding to the sharing information request of the target base station, and sharing a user information table corresponding to at least one user equipment in the source base station to the target base station;
and demodulating the signal transmitted by the user equipment based on the user information table so as to establish uplink communication connection between the user equipment and the target base station.
Further, after demodulating the signal transmitted by the ue based on the table of user information to establish an uplink communication connection between the ue and the target base station, the method further includes:
acquiring time information corresponding to the last shared information request of the target base station;
determining the sharing duration of the target base station according to the time information corresponding to the last sharing information request;
And in response to determining that the sharing duration threshold value is greater than a preset sharing duration threshold value, the source base station stops sharing with the target base station and deletes the data in the user information table.
Further, the method further comprises:
responding to a connection request sent by user equipment to the base station, and acquiring user equipment information corresponding to the user equipment;
And in response to determining that the user equipment information is not stored in the user information table of the base station, grouping the user equipment and allocating ZC sequences to the user equipment.
Further, in response to determining that the user equipment information is not stored in the user information table of the base station, grouping the user equipment, and allocating a ZC sequence to the user equipment further comprises:
updating the latest connection time of the user equipment in response to determining that the user equipment information has been stored in a user information table of the base station;
Determining the connection duration of the user equipment according to the latest connection time;
And deleting the user equipment from the user information table in response to determining that the connection duration is not within a preset connection duration threshold range.
Further, the grouping the user equipment includes:
Dividing a preset number of user equipment into a group according to the sequence of the user equipment accessing the base station;
and sequentially distributing corresponding serial numbers to the user equipment according to the time information corresponding to the connection request of each user equipment in each group.
Further, the allocating ZC sequences to the ue includes:
for each grouping, respectively matching a ZC root sequence, wherein the grouping corresponds to the ZC root sequence one by one;
And performing cyclic shift on each piece of user equipment in the same grouping according to the ZC root sequence to generate a ZC sequence of the user equipment, wherein the user equipment corresponds to the ZC sequence one by one.
Further, the user information table includes at least one of: user equipment information, ZC sequence, sequence number, and latest connection time.
Based on the same inventive concept, a second aspect of the present application provides a base station uplink communication device under high-speed movement, including:
the information sharing module is configured to respond to the sharing information request of the target base station and share the user information table corresponding to at least one user equipment in the source base station to the target base station;
And the uplink communication module is configured to demodulate the signal transmitted by the user equipment based on the user information table so as to establish uplink communication connection between the user equipment and the target base station.
Based on the same inventive concept, a third aspect of the present application provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method according to the first aspect when executing the program.
Based on the same inventive concept, a fourth aspect of the present application provides a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of the first aspect.
As can be seen from the above description, the uplink communication method and the related device under high-speed movement provided by the present application are based on the communication mechanism of user sequence modulation, and each user accesses the same base station to perform grouping and sorting for the same base station, and allocates a corresponding ZC sequence. Under the scene of high-speed movement, after a user enters the next base station from the current base station, the current base station shares the stored user information table with the next base station, and each user does not need to establish communication connection with the next base station again, so that the time for reestablishing communication is saved, the user can continuously and stably communicate, the problems of frequent switching and high switching failure rate are avoided, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present application or related art, the drawings that are required to be used in the description of the embodiments or related art will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort to those of ordinary skill in the art.
Fig. 1 is a flow chart of an uplink communication method under high-speed movement according to an embodiment of the present application;
FIG. 2 is a flowchart of a method for processing a timeout of a shared information request according to an embodiment of the present application;
Fig. 3 is a flowchart of a processing method of a new access ue according to an embodiment of the present application;
fig. 4 is a flowchart of a method for processing a timeout of a ue connection in an embodiment of the present application;
Fig. 5 is a schematic structural diagram of a base station uplink communication device under high-speed movement according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the application.
Detailed Description
The present application will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present application more apparent.
It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "first," "second," and the like, as used in embodiments of the present application, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
As described in the background section, it is also difficult to satisfy the requirements of the communication scheme of the base station in the related art, and it is believed that at least the following problems exist in the implementation of the present application: in a scene of high-speed movement, for example: when a user enters the signal radiation range of the next base station from the signal radiation range of the current base station, the next base station does not store the related information of each user device on the train, at the moment, the user needs to reestablish communication connection with the next base station, the reestablishment of the communication connection consumes more time, the signal interruption of the user device can be caused, the switching failure rate is high, the user experience is affected, and in addition, the frequent reestablishment of the communication connection also increases the resource consumption.
In view of this, an embodiment of the present application provides an uplink communication method under high-speed movement, which considers storing relevant information of a user equipment accessed by a current base station, and in a scenario of high-speed movement, when the user equipment enters a signal radiation range of a next base station from a signal radiation range of the current base station, the current base station shares relevant information of all the user equipment stored by the current base station to the next base station, so that a time-consuming problem that the user equipment and the next base station need to reestablish communication connection can be avoided.
The following describes the technical scheme of the present application in detail through specific examples.
Referring to fig. 1, an uplink communication method under high-speed movement provided by an embodiment of the present application, where the base station includes a source base station and a target base station, the method specifically includes the following steps:
Step S101, in response to a sharing information request of a target base station, sharing a user information table corresponding to at least one user equipment in a source base station to the target base station.
In this step, for each base station, the base station where the user equipment is currently located is a source base station, and the next base station relative to the source base station according to the running direction of the train is a target base station. Specifically, for example: a train traveling at high speed on a railroad track will continue to leave the signal radiation range of the current base station and enter the signal radiation range of the next base station as user equipment within the train follows the train rapidly.
Specifically, the user information table includes at least one of the following: user equipment information, ZC sequence, sequence number, and latest connection time. The User Equipment (UE) may be any communication product capable of communicating with the base station, including but not limited to: cell phones, computers, etc. The user equipment information can be user identification, and the user identification has uniqueness, namely the user equipment corresponds to the user identification one by one. ZC (Zadoff-Chu) sequence: the term "ZC sequence" in the present application refers to a type of sequence. Each base station radiates a certain range, and the latest connection time refers to the time when the user equipment requests to access the railway communication network last time.
Step S102, based on the user information table, demodulating the signal transmitted by the user equipment to establish an uplink communication connection between the user equipment and the target base station.
In the step, the ZC sequence corresponding to the user equipment can be obtained through the user information table, the ZC sequence has good autocorrelation and cross correlation, the received signal is subjected to equalization and then convolved with the ZC sequence, the obtained peak value position is the received symbol value, and the received symbol value is converted into binary system, so that the received bit stream is obtained.
It should be noted that, when the ue needs to make a communication connection with the current base station, the signal transmitted by the ue may be demodulated based on the ue information table, so as to establish a communication connection between the ue and the current base station.
Therefore, in the uplink communication method under high-speed movement, after the user enters the next base station from the current base station, the current base station shares the stored user information table to the next base station, and each user does not need to establish communication connection with the next base station again, so that the time for reestablishing communication is saved, the user can continuously and stably communicate, the problems of frequent switching and high switching failure rate are avoided, and the user experience is improved.
In some embodiments, referring to fig. 2, for step S102 in the foregoing embodiment, the following steps may be further included:
step S201, obtaining time information corresponding to the last shared information request of the target base station.
In this step, if the target base station requests the shared information, it is indicated that the user equipment in the train has entered the signal radiation range of the target base station, and if the target base station has only sent a shared information request, the shared information request may be the first shared information request or the last shared information request.
Step S202, determining the sharing duration of the target base station according to the time information corresponding to the last sharing information request.
In the step, the sharing time is from the time when the source base station shares the user information table with the target base station to the time when the source base station stops sharing the user information table with the target base station, and the time difference is the sharing time.
And step 203, in response to determining that the sharing duration threshold is greater than the preset sharing duration threshold, the source base station stops sharing with the target base station, and deletes the data in the user information table.
In the step, the shared duration threshold is calculated according to the time when the train enters the signal radiation area of the target base station and the time when the train leaves the signal radiation area of the target base station, and the shared duration threshold is set to ensure that the train is in the signal radiation area of the target base station, so that the user can normally communicate and interruption is avoided.
It is easy to understand that when the sharing time length is greater than the sharing time length threshold, it indicates that the user equipment is not in the signal radiation area of the target base station, and at this time, the source base station does not share the user information table to the target base station, so as to avoid wasting communication resources.
In some embodiments, in conjunction with fig. 3, the method may further comprise the steps of:
Step S301, obtaining user equipment information corresponding to the user equipment in response to a connection request sent by the user equipment to the base station.
In this step, after the ue sends a connection request to the base station, the ue sends its ue identifier to the base station.
Step S302, grouping the user equipment and distributing ZC sequences for the user equipment in response to determining that the user equipment information is not stored in the user information table of the base station.
In this step, the user device is first accessed to the track communication network by comparing and searching the user information table for the user identifier without the user device, so that it can be confirmed that other relevant user information of the user is not prestored.
Correspondingly, the user identification, the sequence number, the ZC sequence and the access time are stored in a user information table.
It is easy to understand that by looking up the user identifier of the user equipment in the user information table, the user equipment is already accessed to the track communication network, and it can be confirmed that other relevant user information of the user is already stored in advance, and no grouping and ZC sequence allocation operation is needed.
In some embodiments, in conjunction with fig. 4, for step S302 in the foregoing embodiment, the following steps may be further included thereafter:
step S401, in response to determining that the user equipment information is already stored in the user information table of the base station, updating the latest connection time of the user equipment.
In this step, since the communication connection between the user equipment and the base station is disconnected, the connection needs to be re-performed, and the latest connection time in the user information table needs to be updated.
Step S402, according to the latest connection time, determining the connection duration of the user equipment.
In this step, the connection duration is from the time when the ue sends the connection request to start the timing, to the time when the ue is currently timed or to the time when the ue is successfully timed.
Step S403, in response to determining that the connection duration is not within the preset connection duration threshold, deleting the user equipment from the user information table.
In this step, in order to avoid that the ue and the base station are not connected for a long time, the base station and the ue are disconnected and related information is cleared for the ue that is not connected successfully for a long time. At this time, the user equipment resends the connection request to establish a communication connection with the base station within the connection duration threshold.
In some embodiments, for grouping the user equipments as described in the previous embodiments, the method may include the steps of:
step S501, dividing a preset number of user equipments into a group according to the sequence of accessing the user equipments to the base station.
In this step, the number of user equipments in the group may be set according to actual situations, which is not specifically limited herein.
Step S502, according to the time information corresponding to the connection request of each ue in each group, sequentially allocating corresponding sequence numbers to each ue.
In this step, the bit size N of the sequence number, which is the logarithm of the maximum number N of a group, i.e., n=log 2 N.
In some embodiments, for allocating ZC sequences to the ue described in the foregoing embodiments, the method may include the following steps:
step S601, for each grouping, a ZC root sequence is matched, wherein the grouping corresponds to the ZC root sequence one by one.
Step S602, performing cyclic shift on each ue in the same group according to the ZC root sequence, to generate a ZC sequence of the ue, where the ue corresponds to the ZC sequence one by one.
It should be noted that, the method of the embodiment of the present application may be performed by a single device, for example, a computer or a server. The method of the embodiment can also be applied to a distributed scene, and is completed by mutually matching a plurality of devices. In the case of such a distributed scenario, one of the devices may perform only one or more steps of the method of an embodiment of the present application, the devices interacting with each other to accomplish the method.
It should be noted that the foregoing describes some embodiments of the present application. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
Based on the same inventive concept, the application also provides a base station uplink communication device under high-speed movement, which corresponds to the method of any embodiment.
Referring to fig. 5, the base station uplink communication device under high-speed movement includes:
The information sharing module 701 is configured to share a user information table corresponding to at least one user equipment in a source base station to a target base station in response to a request for sharing information of the target base station.
An uplink communication module 702, configured to demodulate, based on the user information table, a signal transmitted by the user equipment, so as to establish an uplink communication connection between the user equipment and the target base station.
As an optional embodiment, the apparatus further includes a sharing timeout processing module (not shown), where the sharing timeout processing module is configured to obtain time information corresponding to a last shared information request of the target base station; determining the sharing duration of the target base station according to the time information corresponding to the last sharing information request; and in response to determining that the sharing duration threshold value is greater than a preset sharing duration threshold value, the source base station stops sharing with the target base station and deletes the data in the user information table.
As an optional embodiment, the apparatus further includes a request processing module (not shown), where the request processing module is configured to obtain, in response to a connection request sent by a user equipment to the base station, user equipment information corresponding to the user equipment; and in response to determining that the user equipment information is not stored in the user information table of the base station, grouping the user equipment and allocating ZC sequences to the user equipment.
As an alternative embodiment, the apparatus further comprises a connection timeout processing module (not shown), the connection timeout processing module being configured to update the latest connection time of the user equipment in response to determining that the user equipment information is already stored in the user information table of the base station; determining the connection duration of the user equipment according to the latest connection time; and deleting the user equipment from the user information table in response to determining that the connection duration is not within a preset connection duration threshold range.
As an alternative embodiment, the apparatus further comprises a grouping module (not shown) configured to divide a preset number of user equipments into one group according to an order of access of the user equipments to the base station; and sequentially distributing corresponding serial numbers to the user equipment according to the time information corresponding to the connection request of each user equipment in each group.
As an optional embodiment, the apparatus further includes a ZC sequence allocation module (not shown), where the ZC sequence allocation module is configured to match a ZC root sequence for each grouping, where the groupings correspond to the ZC root sequences one-to-one; and performing cyclic shift on each piece of user equipment in the same grouping according to the ZC root sequence to generate a ZC sequence of the user equipment, wherein the user equipment corresponds to the ZC sequence one by one.
As an alternative embodiment, the user information table includes at least one of: user equipment information, ZC sequence, sequence number, and latest connection time.
For convenience of description, the above devices are described as being functionally divided into various modules, respectively. Of course, the functions of each module may be implemented in the same piece or pieces of software and/or hardware when implementing the present application.
The device of the foregoing embodiment is configured to implement the uplink communication method under the corresponding high-speed movement in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which is not described herein.
Based on the same inventive concept, the application also provides an electronic device corresponding to the method of any embodiment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the uplink communication method under the high-speed movement of any embodiment when executing the program.
Fig. 6 shows a more specific hardware architecture of an electronic device according to this embodiment, where the device may include: a processor 1010, a memory 1020, an input/output interface 1030, a communication interface 1040, and a bus 1050. Wherein processor 1010, memory 1020, input/output interface 1030, and communication interface 1040 implement communication connections therebetween within the device via a bus 1050.
The processor 1010 may be implemented by a general-purpose CPU (Central Processing Unit ), a microprocessor, an Application SPECIFIC INTEGRATED Circuit (ASIC), or one or more integrated circuits, etc. for executing related programs to implement the technical solutions provided in the embodiments of the present disclosure.
The Memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory ), static storage, dynamic storage, etc. Memory 1020 may store an operating system and other application programs, and when the embodiments of the present specification are implemented in software or firmware, the associated program code is stored in memory 1020 and executed by processor 1010.
The input/output interface 1030 is used to connect with an input/output module for inputting and outputting information. The input/output module may be configured as a component in a device (not shown) or may be external to the device to provide corresponding functionality. Wherein the input devices may include a keyboard, mouse, touch screen, microphone, various types of sensors, etc., and the output devices may include a display, speaker, vibrator, indicator lights, etc.
Communication interface 1040 is used to connect communication modules (not shown) to enable communication interactions of the present device with other devices. The communication module may implement communication through a wired manner (such as USB, network cable, etc.), or may implement communication through a wireless manner (such as mobile network, WIFI, bluetooth, etc.).
Bus 1050 includes a path for transferring information between components of the device (e.g., processor 1010, memory 1020, input/output interface 1030, and communication interface 1040).
It should be noted that although the above-described device only shows processor 1010, memory 1020, input/output interface 1030, communication interface 1040, and bus 1050, in an implementation, the device may include other components necessary to achieve proper operation. Furthermore, it will be understood by those skilled in the art that the above-described apparatus may include only the components necessary to implement the embodiments of the present description, and not all the components shown in the drawings.
The electronic device of the foregoing embodiment is configured to implement the uplink communication method under the corresponding high-speed movement in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which is not described herein.
Based on the same inventive concept, the present application also provides a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the upstream communication method under high speed movement as described in any of the above embodiments, corresponding to the method of any of the above embodiments.
The computer readable media of the present embodiments, including both permanent and non-permanent, removable and non-removable media, may be used to implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device.
The storage medium of the foregoing embodiments stores computer instructions for causing the computer to perform the uplink communication method under high-speed movement as in any one of the foregoing embodiments, and has the advantages of the corresponding method embodiments, which are not described herein.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the application (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the application, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the application as described above, which are not provided in detail for the sake of brevity.
Additionally, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures, in order to simplify the illustration and discussion, and so as not to obscure the embodiments of the present application. Furthermore, the devices may be shown in block diagram form in order to avoid obscuring the embodiments of the present application, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the embodiments of the present application are to be implemented (i.e., such specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the application, it should be apparent to one skilled in the art that embodiments of the application can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.
While the application has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, and the like, which are within the spirit and principles of the embodiments of the application, are intended to be included within the scope of the application.

Claims (8)

1. An uplink communication method under high-speed movement, wherein a base station comprises a source base station and a target base station, the communication method comprising:
Responding to the sharing information request of the target base station, and sharing a user information table corresponding to at least one user equipment in the source base station to the target base station;
Demodulating a signal transmitted by the user equipment based on the user information table to establish uplink communication connection between the user equipment and the target base station;
The demodulating the signal transmitted by the user equipment based on the user information table to establish the uplink communication connection between the user equipment and the target base station further includes:
acquiring time information corresponding to the last shared information request of the target base station;
determining the sharing duration of the target base station according to the time information corresponding to the last sharing information request;
In response to determining that the sharing time length is greater than a preset sharing time length threshold, the source base station stops sharing with the target base station and deletes data in the user information table;
The user information table includes: user equipment information, ZC sequence, sequence number, and latest connection time.
2. The communication method according to claim 1, characterized in that the method further comprises:
responding to a connection request sent by user equipment to the base station, and acquiring user equipment information corresponding to the user equipment;
And in response to determining that the user equipment information is not stored in the user information table of the base station, grouping the user equipment and allocating ZC sequences to the user equipment.
3. The communication method of claim 2, wherein the grouping the user equipment and assigning the ZC sequence to the user equipment in response to determining that the user equipment information is not stored in the user information table of the base station further comprises:
updating the latest connection time of the user equipment in response to determining that the user equipment information has been stored in a user information table of the base station;
Determining the connection duration of the user equipment according to the latest connection time;
And deleting the user equipment from the user information table in response to determining that the connection duration is not within a preset connection duration threshold range.
4. A method of communicating according to claim 3, wherein said grouping said user devices comprises:
Dividing a preset number of user equipment into a group according to the sequence of the user equipment accessing the base station;
and sequentially distributing corresponding serial numbers to the user equipment according to the time information corresponding to the connection request of each user equipment in each group.
5. The communication method according to claim 4, wherein the allocating ZC sequences to the user equipment comprises:
for each grouping, respectively matching a ZC root sequence, wherein the grouping corresponds to the ZC root sequence one by one;
And performing cyclic shift on each piece of user equipment in the same grouping according to the ZC root sequence to generate a ZC sequence of the user equipment, wherein the user equipment corresponds to the ZC sequence one by one.
6. A base station uplink communication device in high speed movement, comprising:
the information sharing module is configured to respond to a sharing information request of a target base station and share a user information table corresponding to at least one user equipment in a source base station to the target base station;
An uplink communication module configured to demodulate a signal transmitted by the user equipment based on the user information table, so as to establish an uplink communication connection between the user equipment and the target base station;
The apparatus further comprises:
the acquisition module is configured to acquire time information corresponding to the last shared information request of the target base station;
the determining module is configured to determine the sharing duration of the target base station according to the time information corresponding to the last sharing information request;
A deletion module configured to stop sharing with the target base station and delete data in the user information table in response to determining that the sharing time period is greater than a preset sharing time period threshold;
The user information table includes: user equipment information, ZC sequence, sequence number, and latest connection time.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 5 when the program is executed by the processor.
8. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1 to 5.
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